WHvGetVirtualProcessorXsaveState

// WinHvPlatform.dll
#include <windows.h>

HRESULT WHvGetVirtualProcessorXsaveState(
    WHV_PARTITION_HANDLE Partition,
    DWORD VpIndex,
    void* Buffer,
    DWORD BufferSizeInBytes,
    DWORD* BytesWritten
);

<DllImport("WinHvPlatform.dll", ExactSpelling:=True)>
Public Shared Function WHvGetVirtualProcessorXsaveState(
    Partition As IntPtr,   ' WHV_PARTITION_HANDLE
    VpIndex As UInteger,   ' DWORD
    Buffer As IntPtr,   ' void* out
    BufferSizeInBytes As UInteger,   ' DWORD
    <Out> ByRef BytesWritten As UInteger   ' DWORD* out
) As Integer
End Function

' Partition : WHV_PARTITION_HANDLE
' VpIndex : DWORD
' Buffer : void* out
' BufferSizeInBytes : DWORD
' BytesWritten : DWORD* out
Declare PtrSafe Function WHvGetVirtualProcessorXsaveState Lib "winhvplatform" ( _
    ByVal Partition As LongPtr, _
    ByVal VpIndex As Long, _
    ByVal Buffer As LongPtr, _
    ByVal BufferSizeInBytes As Long, _
    ByRef BytesWritten As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WHvGetVirtualProcessorXsaveState = ctypes.windll.winhvplatform.WHvGetVirtualProcessorXsaveState
WHvGetVirtualProcessorXsaveState.restype = ctypes.c_int
WHvGetVirtualProcessorXsaveState.argtypes = [
    ctypes.c_ssize_t,  # Partition : WHV_PARTITION_HANDLE
    wintypes.DWORD,  # VpIndex : DWORD
    ctypes.POINTER(None),  # Buffer : void* out
    wintypes.DWORD,  # BufferSizeInBytes : DWORD
    ctypes.POINTER(wintypes.DWORD),  # BytesWritten : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinHvPlatform.dll')
WHvGetVirtualProcessorXsaveState = Fiddle::Function.new(
  lib['WHvGetVirtualProcessorXsaveState'],
  [
    Fiddle::TYPE_INTPTR_T,  # Partition : WHV_PARTITION_HANDLE
    -Fiddle::TYPE_INT,  # VpIndex : DWORD
    Fiddle::TYPE_VOIDP,  # Buffer : void* out
    -Fiddle::TYPE_INT,  # BufferSizeInBytes : DWORD
    Fiddle::TYPE_VOIDP,  # BytesWritten : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhvplatform")]
extern "system" {
    fn WHvGetVirtualProcessorXsaveState(
        Partition: isize,  // WHV_PARTITION_HANDLE
        VpIndex: u32,  // DWORD
        Buffer: *mut (),  // void* out
        BufferSizeInBytes: u32,  // DWORD
        BytesWritten: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinHvPlatform.dll")]
public static extern int WHvGetVirtualProcessorXsaveState(IntPtr Partition, uint VpIndex, IntPtr Buffer, uint BufferSizeInBytes, out uint BytesWritten);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinHvPlatform_WHvGetVirtualProcessorXsaveState' -Namespace Win32 -PassThru
# $api::WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten)

#uselib "WinHvPlatform.dll"
#func global WHvGetVirtualProcessorXsaveState "WHvGetVirtualProcessorXsaveState" sptr, sptr, sptr, sptr, sptr
; WHvGetVirtualProcessorXsaveState Partition, VpIndex, Buffer, BufferSizeInBytes, varptr(BytesWritten)   ; 戻り値は stat
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "sptr"
; Buffer : void* out -> "sptr"
; BufferSizeInBytes : DWORD -> "sptr"
; BytesWritten : DWORD* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winhvplatform = windows.NewLazySystemDLL("WinHvPlatform.dll")
	procWHvGetVirtualProcessorXsaveState = winhvplatform.NewProc("WHvGetVirtualProcessorXsaveState")
)

// Partition (WHV_PARTITION_HANDLE), VpIndex (DWORD), Buffer (void* out), BufferSizeInBytes (DWORD), BytesWritten (DWORD* out)
r1, _, err := procWHvGetVirtualProcessorXsaveState.Call(
	uintptr(Partition),
	uintptr(VpIndex),
	uintptr(Buffer),
	uintptr(BufferSizeInBytes),
	uintptr(BytesWritten),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WHvGetVirtualProcessorXsaveState(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  VpIndex: DWORD;   // DWORD
  Buffer: Pointer;   // void* out
  BufferSizeInBytes: DWORD;   // DWORD
  BytesWritten: Pointer   // DWORD* out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvGetVirtualProcessorXsaveState';

result := DllCall("WinHvPlatform\WHvGetVirtualProcessorXsaveState"
    , "Ptr", Partition   ; WHV_PARTITION_HANDLE
    , "UInt", VpIndex   ; DWORD
    , "Ptr", Buffer   ; void* out
    , "UInt", BufferSizeInBytes   ; DWORD
    , "Ptr", BytesWritten   ; DWORD* out
    , "Int")   ; return: HRESULT

●WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten) = DLL("WinHvPlatform.dll", "int WHvGetVirtualProcessorXsaveState(int, dword, void*, dword, void*)")
# 呼び出し: WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten)
# Partition : WHV_PARTITION_HANDLE -> "int"
# VpIndex : DWORD -> "dword"
# Buffer : void* out -> "void*"
# BufferSizeInBytes : DWORD -> "dword"
# BytesWritten : DWORD* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "winhvplatform" fn WHvGetVirtualProcessorXsaveState(
    Partition: isize, // WHV_PARTITION_HANDLE
    VpIndex: u32, // DWORD
    Buffer: ?*anyopaque, // void* out
    BufferSizeInBytes: u32, // DWORD
    BytesWritten: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;

proc WHvGetVirtualProcessorXsaveState(
    Partition: int,  # WHV_PARTITION_HANDLE
    VpIndex: uint32,  # DWORD
    Buffer: pointer,  # void* out
    BufferSizeInBytes: uint32,  # DWORD
    BytesWritten: ptr uint32  # DWORD* out
): int32 {.importc: "WHvGetVirtualProcessorXsaveState", stdcall, dynlib: "WinHvPlatform.dll".}

pragma(lib, "winhvplatform");
extern(Windows)
int WHvGetVirtualProcessorXsaveState(
    ptrdiff_t Partition,   // WHV_PARTITION_HANDLE
    uint VpIndex,   // DWORD
    void* Buffer,   // void* out
    uint BufferSizeInBytes,   // DWORD
    uint* BytesWritten   // DWORD* out
);

ccall((:WHvGetVirtualProcessorXsaveState, "WinHvPlatform.dll"), stdcall, Int32,
      (Int, UInt32, Ptr{Cvoid}, UInt32, Ptr{UInt32}),
      Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten)
# Partition : WHV_PARTITION_HANDLE -> Int
# VpIndex : DWORD -> UInt32
# Buffer : void* out -> Ptr{Cvoid}
# BufferSizeInBytes : DWORD -> UInt32
# BytesWritten : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WHvGetVirtualProcessorXsaveState(
    intptr_t Partition,
    uint32_t VpIndex,
    void* Buffer,
    uint32_t BufferSizeInBytes,
    uint32_t* BytesWritten);
]]
local winhvplatform = ffi.load("winhvplatform")
-- winhvplatform.WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten)
-- Partition : WHV_PARTITION_HANDLE
-- VpIndex : DWORD
-- Buffer : void* out
-- BufferSizeInBytes : DWORD
-- BytesWritten : DWORD* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('WinHvPlatform.dll');
const WHvGetVirtualProcessorXsaveState = lib.func('__stdcall', 'WHvGetVirtualProcessorXsaveState', 'int32_t', ['intptr_t', 'uint32_t', 'void *', 'uint32_t', 'uint32_t *']);
// WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten)
// Partition : WHV_PARTITION_HANDLE -> 'intptr_t'
// VpIndex : DWORD -> 'uint32_t'
// Buffer : void* out -> 'void *'
// BufferSizeInBytes : DWORD -> 'uint32_t'
// BytesWritten : DWORD* out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("WinHvPlatform.dll", {
  WHvGetVirtualProcessorXsaveState: { parameters: ["isize", "u32", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten)
// Partition : WHV_PARTITION_HANDLE -> "isize"
// VpIndex : DWORD -> "u32"
// Buffer : void* out -> "pointer"
// BufferSizeInBytes : DWORD -> "u32"
// BytesWritten : DWORD* out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t WHvGetVirtualProcessorXsaveState(
    intptr_t Partition,
    uint32_t VpIndex,
    void* Buffer,
    uint32_t BufferSizeInBytes,
    uint32_t* BytesWritten);
C, "WinHvPlatform.dll");
// $ffi->WHvGetVirtualProcessorXsaveState(Partition, VpIndex, Buffer, BufferSizeInBytes, BytesWritten);
// Partition : WHV_PARTITION_HANDLE
// VpIndex : DWORD
// Buffer : void* out
// BufferSizeInBytes : DWORD
// BytesWritten : DWORD* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Winhvplatform extends StdCallLibrary {
    Winhvplatform INSTANCE = Native.load("winhvplatform", Winhvplatform.class);
    int WHvGetVirtualProcessorXsaveState(
        long Partition,   // WHV_PARTITION_HANDLE
        int VpIndex,   // DWORD
        Pointer Buffer,   // void* out
        int BufferSizeInBytes,   // DWORD
        IntByReference BytesWritten   // DWORD* out
    );
}

@[Link("winhvplatform")]
lib LibWinHvPlatform
  fun WHvGetVirtualProcessorXsaveState = WHvGetVirtualProcessorXsaveState(
    Partition : LibC::SSizeT,   # WHV_PARTITION_HANDLE
    VpIndex : UInt32,   # DWORD
    Buffer : Void*,   # void* out
    BufferSizeInBytes : UInt32,   # DWORD
    BytesWritten : UInt32*   # DWORD* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef WHvGetVirtualProcessorXsaveStateNative = Int32 Function(IntPtr, Uint32, Pointer<Void>, Uint32, Pointer<Uint32>);
typedef WHvGetVirtualProcessorXsaveStateDart = int Function(int, int, Pointer<Void>, int, Pointer<Uint32>);
final WHvGetVirtualProcessorXsaveState = DynamicLibrary.open('WinHvPlatform.dll')
    .lookupFunction<WHvGetVirtualProcessorXsaveStateNative, WHvGetVirtualProcessorXsaveStateDart>('WHvGetVirtualProcessorXsaveState');
// Partition : WHV_PARTITION_HANDLE -> IntPtr
// VpIndex : DWORD -> Uint32
// Buffer : void* out -> Pointer<Void>
// BufferSizeInBytes : DWORD -> Uint32
// BytesWritten : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WHvGetVirtualProcessorXsaveState(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  VpIndex: DWORD;   // DWORD
  Buffer: Pointer;   // void* out
  BufferSizeInBytes: DWORD;   // DWORD
  BytesWritten: Pointer   // DWORD* out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvGetVirtualProcessorXsaveState';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WHvGetVirtualProcessorXsaveState"
  c_WHvGetVirtualProcessorXsaveState :: CIntPtr -> Word32 -> Ptr () -> Word32 -> Ptr Word32 -> IO Int32
-- Partition : WHV_PARTITION_HANDLE -> CIntPtr
-- VpIndex : DWORD -> Word32
-- Buffer : void* out -> Ptr ()
-- BufferSizeInBytes : DWORD -> Word32
-- BytesWritten : DWORD* out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let whvgetvirtualprocessorxsavestate =
  foreign "WHvGetVirtualProcessorXsaveState"
    (intptr_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* Partition : WHV_PARTITION_HANDLE -> intptr_t *)
(* VpIndex : DWORD -> uint32_t *)
(* Buffer : void* out -> (ptr void) *)
(* BufferSizeInBytes : DWORD -> uint32_t *)
(* BytesWritten : DWORD* out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library winhvplatform (t "WinHvPlatform.dll"))
(cffi:use-foreign-library winhvplatform)

(cffi:defcfun ("WHvGetVirtualProcessorXsaveState" whv-get-virtual-processor-xsave-state :convention :stdcall) :int32
  (partition :int64)   ; WHV_PARTITION_HANDLE
  (vp-index :uint32)   ; DWORD
  (buffer :pointer)   ; void* out
  (buffer-size-in-bytes :uint32)   ; DWORD
  (bytes-written :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WHvGetVirtualProcessorXsaveState = Win32::API::More->new('WinHvPlatform',
    'int WHvGetVirtualProcessorXsaveState(LPARAM Partition, DWORD VpIndex, LPVOID Buffer, DWORD BufferSizeInBytes, LPVOID BytesWritten)');
# my $ret = $WHvGetVirtualProcessorXsaveState->Call($Partition, $VpIndex, $Buffer, $BufferSizeInBytes, $BytesWritten);
# Partition : WHV_PARTITION_HANDLE -> LPARAM
# VpIndex : DWORD -> DWORD
# Buffer : void* out -> LPVOID
# BufferSizeInBytes : DWORD -> DWORD
# BytesWritten : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。